Skin treatment apparatus



FIG. 1 is a front perspective view of a skin treatment apparatus of the present invention;

FIG. 2 is a rear perspective view;

FIG. 3 is a front view;

FIG. 4 is a rear view;

FIG. 5 is a first side view;

FIG. 6 is a second side view;

FIG. 7 is a top view; and,

FIG. 8 is a bottom view.

The broken line showing of skin treatment apparatus is included for the purpose of illustrating environment and forms no part of the claimed design. 

CLAIM The ornamental design for a skin treatment apparatus, as shown and described. 